SOLUTION: Please help!!!!! Find the surface area of the cylinder. Round to nearest tenth. Picture of the problem > http://i49.tinypic.com/314pmae.png thanks in advance!! the answer

Algebra ->  Surface-area -> SOLUTION: Please help!!!!! Find the surface area of the cylinder. Round to nearest tenth. Picture of the problem > http://i49.tinypic.com/314pmae.png thanks in advance!! the answer      Log On


   

Question 658567: Please help!!!!!
Find the surface area of the cylinder. Round to nearest tenth.
Picture of the problem > http://i49.tinypic.com/314pmae.png
thanks in advance!!
the answer is not 39.3in cubed
please explain how you came to that answer also, please.
Answer by kevwill(135) About Me  (Show Source):
You can put this solution on YOUR website!
You're probably forgetting the surface area of the two circles at the ends of the cylinder.
d = 2.5 in., h = 5 in.
Area of both circles = 2%2Api%2A%28d%2F2%29%5E2 = 9.8 square inches
Area of the tube = pi%2Ad%2Ah = 39.3 square inches
Total surface area = 49.1 square inches